PR/17845: looking for a superclass in the wrong package

[Andrew Haley]

Paolo Bonzini writes:
 > The patch removes a path for looking a superclass that seems bogus to 
 > me.  gcj would try every package name defined so far, which depends on 
 > the files on the command line, and has no correspondance in the JLS.  
 > Ranjit Mathew tested the patch for me:

This looks OK as it passes Jacks.

Is there a test case we can add to the testsuite?

Andrew.